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Regulations


Drop Rounds: Your lowest scoring round from each series will be dropped.

Entries are open to karts & drivers complying with the following classes.  If you would like to enter but you're not sure if you fit into any of the classes please get in touch.

Chassis are open.  All chassis must have front and side bodywork and full width rear crash protection.  Your race number must be clearly displayed on the front nassau panel, side pods and rear bumper.  Number and background colours are open.

Front brakes are not allowed.

Any treatments to alter tyre performance (e.g. tyre softening solution) are not allowed.

The organisers may amend the minimum weights at any time to ensure parity in multi-engine classes.

Clothing

  • Road legal or Snell helmet
  • CIK Kart racing overalls - no limitation on expiry date 
  • Racing gloves
  • Boots that cover ankles

Tyres

Slicks

Classes using the Sava/Mitas SRL control tyres will be limited to a single set for each series.  Only tyres supplied by Clay Pigeon Raceway may be used and they will be stamped with an individual number allocated to the driver.  There is no restriction on tyre usage in other classes.  There is no restriction on the tyres used in morning practice for all classes.

It will be permitted to purchase a replacement tyre if required due to damage.  Wherever possible, damaged tyres will be replaced with used items held in stock by the organisers.  Evidence of tyre damage must be presented to the scrutineer in order to obtain a replacement.  The scrutineer will decide on whether the replacement will be allowed.

Wets

Junior and Senior Championship classes will be restricted to any commercially available Maxxis or Mojo wet weather tyres.

Tyres for the Cadet class are described in the specific class regulations below.

Championship Classes

Cadet

Engines: Any commercially available Cadet racing engine.  If in doubt, please ask.  Engine type to be submitted at the time of registration.  It will be permitted to change to a different engine type during the Championship if desired, but advance permission must be sought from the organisers in writing.

Driver Age: 8 – 12 years
Minimum weight limit: 103 kg including driver & safety equipment.
Slick Tyres: Dunlop LS2
Wet Tyres: Dunlop KT3

Junior TKM 100cc

Engine: TKM BT82 100cc to Formula TKM Junior Fiche
Air box: Either of the 2 recognised TKM air boxes
Driver Age: 11 - 16

Minimum weight: 148 kg. Lower weights permitted using the TKM restrictor plates as follows:
  1. 142 kg with purple restrictor
  2. 135 kg with blue restrictor
  3. 128 kg with gold restrictor
  4. 123 kg with black restrictor

Slick Tyres: Sava/Mitas SRL
Wet Tyres: Mojo, Maxxis

Senior TKM 100cc/Extreme 115cc

Engine: TKM BT82 100cc or 115cc Extreme to Formula TKM Fiche
Air Box: Either of the 2 recognised TKM air boxes
Minimum driver age: 15 years.

100cc

Minimum weight: 148 kg.  Lower weaight limits permitted using the TKM restrictor plates as follows:
  1. 142 kg with purple restrictor
  2. 135 kg with blue restrictor
  3. 128 kg with gold restrictor
  4. 123 kg with black restrictor

115cc Extreme

Minimum weight: 152 kg. Lower weights permitted using the TKM restrictor plates as follows:
  1. 146 kg with blue restrictor
  2. 139 kg with gold restrictor
  3. 132 kg with black restrictor


Slick Tyres: Sava/Mitas SRL 
Wet Tyres: Mojo, Maxxis

Senior Rotax Max

Engines may be sealed or un-sealed.

Competitors using any Rotax Evo component will race for separate trophies in the Evo class.

Engine: Rotax Max FR125 with Dellorto carb to MSA Fiche.
Air boxes: Any recognised Rotax Max air box. 
Minimum driver age: 16 years.
Minimum Weights:
Rotax (inc. Evo):162 kg
Rotax Heavy (inc. Evo): 177kg

Slick Tyres: Sava/Mitas SRL
Wet Tyres: Mojo, Maxxis 


Junior Rotax Max

Engines may be sealed or un-sealed.

Competitors using any Rotax Evo component will race for separate trophies in the Evo class.


Engine: Rotax FR125 Junior Max with Dellorto carb,
Air boxes: Any recognised Rotax Max air box.  
Driver age: 11-16 years.
Minimum Weights:
Junior (inc. Evo): 148 kg

Slick Tyres: Sava/Mitas SRL
Wet Tyres: Mojo, Maxxis

Junior Pro Kart


Engines: 2 x Honda GX160
Driver age: 11-16 years.
Minimum weight: 150kg
Tyres: Bridgestone YDS
No wet weather tyres

Senior Pro Kart

Engines: 2 x Honda GX160
Minimum driver age: 16 years.
Minimum weight: 180kg
Minimum weight (Heavy Weight Class- 6kg ballast maximum): 195kg
Tyres: Bridgestone YDS
No wet weather tyres

Pro Kart specific engine regulations:

1. Engines must, in all respects, comply with the current ABkC Honda GX160 Technical Regulations at latest release version. http://www.abkc.org.uk/HondaGX160TechRegsV9.pdf

2. Use of alternative lightweight Honda flywheel, Honda Part no. 31100-ZE7-811 is permitted (this part is being made available to assist heavier drivers who wish to save weight on their kart, it may not improve the engines’ performance). If this is used, please make the Scrutineer aware. Flywheel position on the crankshaft vis a vis ignition timing may be checked.

3. Substitution or complete removal of the renewable paper/foam air filter. All of these modifications are clarified in the Honda GX160 Technical Regulations. The plastic cover must remain in place.

4. Separate return springs must be fitted to each carburettor and to the throttle pedal, each acting independently. A linkage may be manufactured to actuate the standard Honda throttle. This may include fitting additional return springs.

5.  In accordance with the Scrutineer’s instructions, and in his presence, the Organisers reserve the right to –

• Ask the competitor to completely disassemble the engine(s), or parts from the engine(s), whilst under parc-ferme conditions.
• Ask the team to drill fasteners, whilst under parc-ferme conditions, for the purpose of sealing the engine for detailed inspection at a later date.
Under both circumstances, all costs incurred to be borne by the Competitor.



Senior Open

Engine: Open
Minimum driver age: 16
Weight: 152 kg
Slick Tyres: Sava/Mitas SRL
Wet Tyres: Mojo, Maxxis

Junior Open

Engine: Open
Driver age: 11 - 16
Weight: TBA
Slick Tyres: Sava/Mitas SRL 
Wet Tyres: Mojo, Maxxis



 

 


Non-Championship Classes

We welcome entries to one off race meetings from organised clubs who wish to race with us but to their own regulations.  Please note that it may be necessary to mix grids in order to maintain track time for all.  Please contact us with plenty of notice if you wish to discuss this.

Event format

Timing

All race timing will be by AMB 160 transponder using the Alpha Timing system.  Limited numbers of transponders are available for hire on a first come first served basis at £5 per meeting. Please note, transponders are compulsory and cannot be shared.

08.00-09.00 Signing on
08.00-09.15 Scrutineering
09.30 Mandatory driver briefing
09.45 – 10.15 Circuit opens for 6 laps practice and transponder check.
10.30  Qualifying commences

Qualifying: 6 minutes to decide grid positions for Heat 1
Heat 1: 8 minutes + 1 lap to decide grid positions for Pre-Final
Pre-Final: 8 minutes + 1 lap to decide grid positions for Final
Final: 10 minutes

 


 


These timings are a guide only and dependent on the number of classes we are generally able to offer substantially longer morning practice sessions. Typically 2 to 3 10 minute sessions are achieved, though this is at the discretion of the organisers. Additionally, the Senior TKM and Senior Rotax classes will run an extra heat instead of qualifying, with drawn grids. Please feel free to get in touch if you have any questions.

 


Flag signals

The Internationally recognised flag signals will be used as per MSA/CIK rules. All flag signals will form an official instruction and must be obeyed.  Any person ignoring signals will take no further part in the meeting.
green flag All clear, at the end of a danger area controlled by yellow flags. Also used to signal the start of a formation lap.
white flag A service car or slow moving car is on the circuit. The white flag will be waved to indicate the sector of the track that the slow moving vehicle is in, and held stationary whilst the vehicle is in the next sector.
red flag Immediately cease driving at racing speed and proceed slowly, without overtaking, and with maximum caution to pits or start line obeying marshal's instructions, and being prepared to stop should the track be blocked.
yellow flag Stationary - Danger, slow down sufficiently to ensure that full control of the vehicle can be retained. No overtaking.

Waved - Great danger, slow down considerably. Be prepared to suddenly change from the projected racing line, or take other evasive action including stopping if necessary. No overtaking. (This signal may be supplemented by flashing yellow light(s), as an added warning).
blue flag Stationary - Another competitor is following close behind.

Waved
- Another competitor is trying to overtake.
black and white flag A warning, to the driver that his behaviour is suspect and that he may be black-flagged on further reports. Displayed with a white number.
black flag The driver must stop at his pit within one lap of receiving the signal and report to the Clerk of the Course. A penalty of exclusion may be enforced by display of the Black flag.
mechanical failure flag Notification of apparent mechanical failure or of a fire which might not be obvious to the driver. The car concerned must call at its pit for repairs on the next lap.
slippery surface flag Stationary - Slippery surface ahead.

Waved - Slippery surface imminent.
false start False start.
chequered flag End of race or practice.


Race Starts

All starts will be ‘slow rolling’ in 2 rows with the pole position on the inside for turn 1. The start signal will be by the extinguishing of the official Red start light. Should the Red light remain on this indicates a false start whereby all competitors will continue for a second slow rolling lap. The pole driver dictates the ‘slow lap’ pace and drivers must remain in grid formation until the start signal is given. Drivers then race to the chequered flag.

Driving standards

There will be a strict ‘No Contact’ rule applied to all meetings. Avoidable contact will result in disqualification from the race. Should any driver be deemed to have deliberately caused contact with another competitor they will automatically be excluded from the results and will take no further part in the event.  All marshals and officials will be deemed as judges.

More than one change of direction to defend a position is not permitted. Any driver moving back towards the racing line, having earlier defended his/her position off-line, should leave at least one kart width between his/her own kart and the edge of the track on the approach to the corner.

Any driver defending his/her position on a straight, and before any braking area, may use the full width of the track during his/her first move, provided no significant portion of the kart attempting to pass is alongside his. Whilst defending in this way the driver may not leave the track without justifiable reason.

For the avoidance of doubt, if any part of the front nose cone of the kart attempting to pass is alongside the rear wheel of the kart in front this will be deemed to be a 'significant portion'.

Judicial Procedure

The events will be controlled by a Race Director, 2 x Assistant Directors and Observers. The Race Director will issue all penalties after a judicial hearing. In the interests of justice we will have a panel of Stewards comprising of an Organiser and two Stewards selected from competitors. The decision of the Stewards is FINAL.